00197467-01_SM_DLM3-4_Kunde_en.pdf - 第77页
Settings Vacuum Test Service Manual SIPLACE Placement Heads DLM3/DLM4 77 Scenario 2 Example of defective vacuum values, which indicate a damaged silicone hose on segment 1 and an open nozzle at segment 3. NOTICE Silicone…
Settings
Vacuum Test
76 Service Manual SIPLACE Placement Heads DLM3/DLM4
Vacuum test with closed nozzle (example of SW60x
shown)
► Start SITEST and perform the first reference run, if
required.
► Select the gantry for the required vacuum test on the
C&P6/12.
► Place all the nozzles for the placement head in the
nozzle changer.
► Replace the full magazine at one magazine position
with the magazine holding the test nozzles
[03067029-xx].
► Go to the Nozzle on head for segment 1 menu and
select the nozzle type which was originally configured
for this magazine position.
► Activate the checkbox All segments as segment 1.
► Pick up the vacuum test nozzles with all segments.
► Select the vacuum test menu and perform a vacuum
test.
► The error message vacuum difference open too low
must be ignored here.
▪ The measurement values show that open values de
-
viates by up to 3 mbar from the closed values.
▪ However, this is within the tolerance of 5 mbar, in
which correct function can be reliably assumed.
► If this tolerance value is exceeded, check the valve
plunger and vacuum plate. Replace these a a precau
-
tion, if necessary.
Scenario 1
Example of faulty vacuum values, which indicate a dam
-
aged vacuum plate at segment 2 here.
NOTICE!
Irreparably damaged vacuum plate
If both measurements for a particular segment are
around 640mbar, this indicates that the vacuum plate is
irreparably damaged.
Settings
Vacuum Test
Service Manual SIPLACE Placement Heads DLM3/DLM4 77
Scenario 2
Example of defective vacuum values, which indicate a
damaged silicone hose on segment 1 and an open nozzle
at segment 3.
NOTICE
Silicone hose defect
Under certain circumstances, silicone hose defects might only be detected when the segments
are moved out. It could therefore be advisable to release the Z axis and to perform a vacuum
test of the segment in its lowered state (single measurement run).
NOTICE
Missing valve plunger
If both measurements for a particular segment are only around 210mbar, this indicates that the
valve plunger is missing.
Vacuum values and valve plunger positions
▪ If the valve plunger is in position "nozzle open" the
vacuum area is sealed by two seal rings against the
atmosphere.
▪ If the valve plunger is in position "nozzle closed" the
vacuum area is sealed by only one seal ring (at the
rear next to the motor).
If the "vacuum value closed" is too low, this indicates that
the seal is not sufficiently greased or that it is damaged.
Settings
DLM4 Assembly with adapter plate
78 Service Manual SIPLACE Placement Heads DLM3/DLM4
5.10
5.10 DLM4 Assembly with adapter plate
DLM4 Assembly with adapter plate
The screws fastening the DLM4 head must be tightened with a torque of 2.7 Nm to the adapter plate.
The screws fastening the adapter plate must be tightened with a torque of 2.7 Nm to the head mounting
plate of the gantry.
5.11
5.11 Other Mechanical Settings on the Star
Other Mechanical Settings on the Star
▪ Set the blast air tube so that it overlaps the circular guide frame by 0.7 mm.
NOTICE
Replacing the DLM4 head
The DLM4 head can be replaced as part of service work.
► If the DLM4 head is fixed to an adapter plate, this will need to be taken off the old head and
fitted to the new one.
Adapter plate DLM4
The adapter plate hardware is designed for quick head
replacement (e.g. for maintenance). It has captive screws
and an eyelet for initial fixation of the head to the head
mounting plate of the gantry.
1. Fastening for DLM4 head on the adapter plate
2. Fastening for adapter plate on the gantry head carrier
3. Loop for fast head exchange (FHE)
4. Centering pins for the DLM4 head